section h2{
    text-align: center;
}
.cities{
    overflow: hidden;
    text-align: center;
}
.cities a{
    width: 24.5%;
    display: inline-block;
    border: 1px solid #4abdcc;
    line-height: 28px;
    height: 28px;
    text-align: center;
    background-color: #fff;
}
.cities .cur{
    background-color: #4abdcc;
    color: #fff;
}
.cities a + a{
    margin-left: -1px;
}
.cities a:first-child{
    border-top-left-radius: 6px;
    border-bottom-left-radius: 6px;
}
.cities a:last-child{
    border-top-right-radius: 6px;
    border-bottom-right-radius: 6px;
}
.detail{
    background-color: #fff;
    -webkit-border-radius: 4px;
    border-radius: 4px;
    border-bottom-right-radius: 4px;
    border-bottom-left-radius: 4px;
    border-top-right-radius: 4px;
    border-top-left-radius: 4px;
    border: 1px solid #4abdcc;
    padding: 15px 15px 1px;
    position: relative;
    margin-top: 14px;
}
.detail::before{
    content: '';
    -webkit-transform: rotate(45deg);
    transform:rotate(45deg);

    position: absolute;
    display: block;
    width: 8px;
    height: 8px;
    font-size: 0;
    background: #fff;
    border-left: 1px solid #4abdcc;
    border-top: 1px solid #4abdcc;
    top: -5px;
}
.beijing::before{
    left: 11%;
}
.shanghai::before{
    left: 35%;
}
.guangzhou::before{
    left: 60%;
}
.fuzhou::before{
    left: 85%;
}
.hidden{
    display: none;
}
.detail li{
    margin-bottom: 14px;
    padding-bottom: 9px;
    border-bottom: 1px solid #c8ebf0;
}
.detail li:last-child{
    border-bottom: none;
    padding-bottom: 0;
}
.detail img{
    width: 100%;
}
.detail h4{
    color: #4abdcc;
    font-size: 16px;
    margin-top: 4px;
    line-height: 1.2;
}